Jewel installing and removing device



March 16, 1954 KRETZER 2,671,945

JEWEL INSTALLING AND REMOVING DEVICE F iled Feb. 15, 1950 2 Sheets-Sheet l 52 D 58 J 28 H9. 30 II 4 20 u 15. IO/ l8 42 40 v Fly, 3

3a 50 l 32 a 46 34 [mm I 24 1a E Harry H. Kre/zer I INVENTOR.

s BY March 16, 1.954 H. H. KRETZER JEWEL INSTALLING AND REMOVING D EVICE 2 Sheets-Sheet 2 Filed Feb. 13, 1950 w 4 D Z M 6 7 1 m T 6 H. m 5 M Z M Q 4 J Patented Mar. 16, 1954 UNITED sures PATENT OFFICE JEWEL ms'rnLLING AND REMOVING DEVICE Han-y H- Kretz ater-s oma, Application February 13, 1950,8erla'l No. 143 960 a device of the character hereindescribed, which facilitates reaming of holes in watch plates, pressing of new jewel-s into such holes, and pressing of old jewels out or the plate, these ditferent operations being possible by the use of a simple, hand actuated device having interchangeable tools.

Some of the advantages or the invention reside in its simplicityof construction, in its efiicient, accurate and dependable operation, and in its adaptability to economical manufacture.

With the above more important objects and features in View and such other objects and features as may become apparent as this specification proceeds, the invention consists essentially of the arrangement and construction of part as illustrated in the accompanying drawings, in which:

Figure l is a side elevational view of the invention.

Figure 2 is a top plan view thereof.

Figure 3 is a fragmentary vertical sectional view, taken substantially in the plane of the line 33 in Figure 2.

Figure 4 is a sectional detail, taken substantially in the plane of the line 4-4 in Figure 3.

Figure 5 is a fragmentary sectional view, similar to that shown in Figure 3, but illustrating the invention in readiness for reaming.

Figure 6 is a vertical sectional view of the reaming tool used in the invention, this view being taken substantially in the plane of the line 6-6 in Figure 7, and

Figure '7 is a transverse sectional view, taken substantially in the plane of the line 1-1 in Figure 6.

Like characters of reference ar employed to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings in detail, more particularly to Figures l-4 inclusive, the invention consists of a device for installing and removing watch jewels, this device being designated generally by the reference character ID and embodying in its construction a pedestal or base I2 provided at the top thereof with a cylindrical adapter H which is removably positioned in a cylindrical socket l6 formed integrally with a member or yoke l8.

This yoke affords a horizontal platform above the socket l 6, and this platform is provided 1 Claim, (01. rear) 2 with a clearance opening 22 which is in register with a clearance bore 24 extending through the pedestal i2 and the adapter M, as is best shown in Figure 3.

The yoke 18 is also formed integrally with what may be ealied a lower handle 25, whil an integral, upward extension 28 of the yoke 18 is provided with a tool holder 39 having a vertical bore '32 in axial alignment with the clearance opening 22 in the plattorm 20.

tool holder 36 is spaced above the platform 26 and is provided with an integral, upward extension 3 3 which has a bifurcated upper end equipped with a transverse fulcrum pin 3% carrying an upper handle :38 which is disposed verstically above the lower handle 26 for coaction therewith. The fulcrumed end portion of the upper handle 38 is provided with a tongue #9 which is disposed between the furcations d2 of the extension $4, it being noted that these furcations project laterally from the extension 34 so as to ailiord substantial supporting surfaces for the tongue 50 to prevent side play of the upper handle on the fulcrum element 36.

An adjusting screw 34, provided with .a knurled shoulder 65 :to facilitate turning thereof, is screw threaded in a bore 43 in the yoke 18 and has a dome-shaped head 50 for abutment with the underside of the upper handle 38 to limit the extent to which the upper handle may be pressed downwardly toward the lower handle 26.

A jewel pressing tool 52 is receivable in the bore 32 of the holder 30 and consist of a substantially cylindrical body having a convex head 54 at its upper end for engagement with the underside of the upper handle 38, it being noted that the holder 30 is provided with a counterbore 56 at the upper end of the bore 32 and that a compression spring 58 is positioned in this counterbore and bears against the underside of the head 54, whereby the pressing tool 52 is urged upwardly.

The lower end portion of the tool 52 is provided with a socket 60 to receive a jewel engaging element 62 which is frictionally retained in position in the socket 60 by a leaf spring 64, a is best shown in Figure 3. v

By swinging the handle 38 upwardly, the entire pressing tool 52, together with the spring 58, may be removed, and a reaming tool designated generally by the reference character 66 in Figures 5-7 inclusive, may be inserted in the bore 32 of the tool holder 30.

The reaming tool 66 consists of a substantially cylindrical body having a diametricallyreduced lower end portion 68 provided with a socket 70 to receive a reamer 12, the socket 70 being provided with a plurality of longitudinally extending slots 14 so that portions of the socket between the slots assume the form of resilient tongues or jaws which are frictionally engageable with the reamer 12 when a tubular cap I6 is screw-threaded on the body of the tool 66, as indicated at 18 in Figure 6.

The sleeve 15 of the tool 65 is rotatable as Well as slidable in the bore 32 of the holder 30, and needless to say, the reamer 72 as well as the aforementioned jewel pressing element 62 may be of any desired diameter.

When the invention is placed in use, the device is arranged as shown in Fi ures 1-4 inclusive, and a watch plate with an old jewel therein is positioned on the platform 20 so that by pressin the upper handle 38 downwardly, the element 62 may be caused to press the old jewel out of the watch plate.

The handle 38 is then swung upwardly and the tool 52 is removed, the tool 56 being substituted therefor so that the aperture in the watch plate may be reamed by the reamer 72,

this being effected by simply rotating the tool 66 in the bore 32 with the handle 38 in its upwardly swung position, as shown in Figure 5.

The pressin tool 52 is then substituted for the reaming tool 66 and the handle 38 is swung downwardly so as to press a new jewel partly into the reamed hole in the plate, with the handle 38 resting on the head 59 of the adjusting screw 44. The upper portion of the device is then separated from the pedestal l2, and by holding the two handles 26, 38in one hand, and turning the screw M, the new jewel may be easily and efliciently pressed into the hole in the plate to the exact required extent.

It is believed that the advantages and use of the invention will be clearly understood from the foregoing disclosure and accordingly, further description thereof at this point is deemed unnecessary.

While in the foregoing there has been show and described the preferred embodiment of this invention, it is to be understood that minor changes in the details of construction and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

Having described the claimed as new is:

In a device of the character described, the combination of a work receiving platform provided with a clearance opening, a lower handle extending laterally from said platform, a tool holder connected to said lower handle and extending above the platform in spaced relation thereto, said holder being provided with a vertical bore in register with said opening, a tool slidably and removably positioned in aid bore, an upper handle pivoted to said holder for upward and downward swinging movement and engaging the upper end of said tool whereby the latter may be pressed downwardly, adjustable means for limiting downward movement of said upper handle, resilient means for sliding said tool upwardly in abutment with said upper handle, a socket provided at the underside of said platform, and a pedestal provided at the top thereof with an adapter removably positioned in said socket, said tool including a substantially cylindrical body provided in one end thereof with a recess, a work engaging element removably positioned in and projectin outwardly from said recess, and a spring positioned on said body and engaging said element for frictionally retainin said element in its position.

HARRY H. KRETZER.

invention, what is References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 450,520 Miner Apr. 14, 1891 763,225 Walden June 21, 1904 782,644 Cleveland Feb. 14, 1905 787,862 Skow Apr. 18, 1905 837,577 Loud Dec. 4, 1906 1,292,073 Rosenberg Jan. 21, 1919 1,524,978 Kirk Feb. 3, 1925 2,116,213 Renz May 3, 1938 2,421,310 Berlincourt May 27, 1947 

